Stadt



(Model.)

G. PICKHARDT.

WIRE NETTING.

190.259.989. y Patented June 20, 1882.

wITNEssEs: INVBNTOR:

www v l I ATTORNEYS.

UNITED STATES PATENT OFFICE.

GUSTAV PICKHARDT, OF IIAGEN,`ASSIGNOR T() CARL KLI", 0F DARM- STADT,GllRMA-NY.

WIRE-NETTING.

SPECIFICATION forming part of Letters Patent No. 259,989, dated June 20,1882.

A pplicuiiun tiled April El, 18.42.

(Minh-l vl To all whom 'it 'may concern Be it known that I, GUSTAVProminente, of Hagen, in the Empire of Germany, have invented a. new anduseful Improvement in \-Vire-Netting,ot' which the tollowingis a speci-Iication.

The object ot' my invention is to provide a new and improved wire-netting, which is stron g and durable and of simple construction, and in whichthe edges are iinished and made strong and in such a manner that theycannot r catch on objects.

Theinvention consists in wire-nettin g formed of a series of unitedlink-sections each formed of oneror more spirals screwed into eachother, the spirals of one link-section bein g screwed into the spiralsof the next sections and wires being passed through the loops formed bythe overlapping parts of the spirals.

The invention further consists in bending the ends of the spiral wiresand the connecting-wires over on the ends ot' the sections for thepurpose of finishing the edges ot' the nettina- Theinvention alsoconsists in spira-ls screwed into the adjoining edges ot' twolink-sections, made of spirals, for the purpose ot' uniting these twoedges.

Reference is to be had tothe accompanying drawings, forming part ot'this specification, in which similar letters of reference indicatecorresponding parts in all the figures.

li'igure l. is n. I'ront elevation olf :L piece ci' myilnproved netting.Fig. L isa longitudinal sectional elevation ot' the same. big. :3 is alongitudinal elevation ot' one of the. spirals.

The netting is formed oi' a series ot' longitudinal link-sections, A,formed ot' oneor more circular or ilat spirals, nmdeot' wi re andscrewed into each other.` 'lhe spirals ofthe several link-sections arescrewed into each otherwthat is to say, the upper ends of the spirals ofone section pass through the lower ends otl the spiralsV ot' the nexthigher link-section, and wires B are passed through the spiralslongitudinally in such a manner that these wires alternately passthrough the upper end i' a spiral or spirals ol' one link-section andthen through the lower end ol' the spiral or spirals of the nextlink-section, whereby the spirals will be more Iirnily united. As isshown in Fig. 2, the spirals pass through each other and the wires lpass through the elves formed by the overlapping parts of the spirals.The endsof the spirals() are bent over against the ondsof the sections,and the ends ot the coupling-wires B are also bentoveron the endsol'thebe iinished and will have no projecting parts on which objects mightcatch. ln thc specimen represented cach link-section is l'ormed ot threespirals screwed into each other. lnstead of three, any number ot'spirals may be provided in each link-section, and the pitch ot' thespirals can be varied according to the deA sired tineness or coarsenessot' the netting.

it' desired, two wires, B, may be used at each `joint, whichconstruction is of special advantage it very strong netting is t0 bemade. ll' ends ot' such netting or several pieces ot netting are to beunited, one or more circular spirais, l), are screwedinto the twolongitudimil edges of the -linli sections A that are to be united, asshown in Fig. 1. All the spirals may be made circular, but this makesthe netting very thick and cumbersome, and for that reason I prefer touse flattened spirals, as shown. lhe cross-section ot' the wires may becircular, square, oblong, polygonal, and in fact may have any desiredcross-section without altering or nilecting the construction ot' thenetting. The width and length ot' the link-sections may lic varied nscircnmslnm-cs may require.

lhe hercin-described wircnetting is to be. used for makingelevator-belts, driving-belts, metal cloths, do., for making safes andchests, shot-proof l'abrie l'or military use, armor, rolling shutters,tire-prooitheater-em'tnins, which may be provided with :t covering onone or both sides.

This netting can also be used as an armor for vessels, or as atorpedo-protector.

Having thus fully described my invention, I claim as new, and desire tosecure by Letters Patentl. Wire-netting made, substantiallyas hereinshown and described, ot' a series oi' spirals screwed into each otherand having connecting-wires passed through the loops formed by theoverlapping parts 0l' the spirals, as set l'orth.

sections, so that the edge ot' the netting will l ICO 2 assenso 2.Wire-nettingnmde of spiralsscre\\'ed into into the meeting ends` of twosections for the each other and united by Wires passed through purposeof uniting them, substantially es herethe loops formed by theoverlapping parts of in shown and described, and for the purpose 15 thespirals, the ends of the wires of the spirals set forth.

5 and the ends of the connecting wires being In testimony Whereoi'lhavesigned my naine bent over against the ends of the link-sections to thisspecification inthe vpresence of two subformed of the spiral wires,substantially :is scribing Witnesses. herein shown and described, andfor the purwf 1' f .1 '1 pose Set forth Li LISTAV l It/AHALDL 1o 3. Thecombination, with a wire-netting Witnesses:

formed of sections made ot' spirals screwed CARL FERI,

into each otheigof one or more spirals screwed EDUARD KNEIREL.

